Harrison-Z 'eldovich原始光谱与观测一致
Harrison-Z'eldovich primordial spectrum is consistent with observations
摘要:
暴胀预言了具有几乎标度不变的谱和近似为1的谱指数(Harrison-Zel'dovich(HZ)谱)的原始标量扰动。暴胀宇宙学的第一个重要步骤是检查HZ原始光谱与当前观测的一致性。最近的分析声称,HZ原始光谱被排除在99%以上的c.l.。在这里,我们表明,HZ谱是只有轻微不利的,如果考虑一个更一般的再电离的情况。来自普朗克任务的数据将解决这个问题。
英文摘要:
Inflation predicts primordial scalar perturbations with a nearly scale-invariant spectrum and a spectral index approximately unity (the Harrison--Zel'dovich (HZ) spectrum). The first important step for inflationary cosmology is to check the consistency of the HZ primordial spectrum with current observations. Recent analyses have claimed that a HZ primordial spectrum is excluded at more than 99% c.l.. Here we show that the HZ spectrum is only marginally disfavored if one considers a more general reionization scenario. Data from the Planck mission will settle the issue.
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